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https://www.readbyqxmd.com/read/28635628/identification-and-validation-of-reference-genes-for-seashore-paspalum-response-to-abiotic-stresses
#1
Yu Liu, Jun Liu, Lei Xu, Hui Lai, Yu Chen, Zhimin Yang, Bingru Huang
Seashore paspalum (Paspalum vaginatum) is among the most salt- and cadmium-tolerant warm-season perennial grass species widely used as turf or forage. The objective of this study was to select stable reference genes for quantitative real-time polymerase chain reaction (qRT-PCR) analysis of seashore paspalum in response to four abiotic stresses. The stability of 12 potential reference genes was evaluated by four programs (geNorm, NormFinder, BestKeeper, and RefFinder). U2AF combined with glyceraldehyde-3-phosphate dehydrogenase (GAPDH) showed stable expression in Cd-treated leaves and cold-treated roots...
June 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28631015/ask-yeast-how-to-burn-your-fats-lessons-learned-from-the-metabolic-adaptation-to-salt-stress
#2
REVIEW
Amparo Pascual-Ahuir, Sara Manzanares-Estreder, Alba Timón-Gómez, Markus Proft
Here, we review and update the recent advances in the metabolic control during the adaptive response of budding yeast to hyperosmotic and salt stress, which is one of the best understood signaling events at the molecular level. This environmental stress can be easily applied and hence has been exploited in the past to generate an impressively detailed and comprehensive model of cellular adaptation. It is clear now that this stress modulates a great number of different physiological functions of the cell, which altogether contribute to cellular survival and adaptation...
June 19, 2017: Current Genetics
https://www.readbyqxmd.com/read/28629499/agrobacterium-salinitolerans-sp-nov-a-saline-alkaline-tolerant-bacterium-isolated-from-root-nodule-of-sesbania-cannabina
#3
Jun Yan, Yan Li, Hui Yan, Wen Feng Chen, Xiaoxia Zhang, En Tao Wang, Xiao Zeng Han, Zhi Hong Xie
Two Gram-staining-negative, aerobic bacteria (YIC 5082T and YIC4104) isolated from root nodules of Sesbania cannabina grown in a high-salt and alkaline environment were identified as a group in the genus Agrobacterium because they shared 100 and 99.7 % sequence similarities of 16S rRNA and recA+atpD genes, respectively. These two strains showed 99.2/100 % and 93.9/95.4 % 16S rRNA and recA+atpD gene sequence similarities to Agrobacterium radiobacter LMG140T and Agrobacterium. pusense NRCPB10T, respectively...
June 20, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28629324/residual-transpiration-as-a-component-of-salinity-stress-tolerance-mechanism-a-case-study-for-barley
#4
Md Hasanuzzaman, Noel W Davies, Lana Shabala, Meixue Zhou, Tim J Brodribb, Sergey Shabala
BACKGROUND: While most water loss from leaf surfaces occurs via stomata, part of this loss also occurs through the leaf cuticle, even when the stomata are fully closed. This component, termed residual transpiration, dominates during the night and also becomes critical under stress conditions such as drought or salinity. Reducing residual transpiration might therefore be a potentially useful mechanism for improving plant performance when water availability is reduced (e.g. under saline or drought stress conditions)...
June 19, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28627026/two-nhx-type-transporters-from-helianthus-tuberosus-improve-the-tolerance-of-rice-to-salinity-and-nutrient-deficiency-stress
#5
Yang Zeng, Qing Li, Haiya Wang, Jianliang Zhang, Jia Du, Huimin Feng, Eduardo Blumwald, Ling Yu, Guohua Xu
The NHX-type cation/H(+) transporters in plants have been shown to mediate Na(+) (K(+) )/H(+) exchange for salinity tolerance and K(+) homeostasis. In this study, we identified and characterized two NHX homologues, HtNHX1 and HtNHX2 from an infertile and salinity tolerant species Helianthus tuberosus (cv. Nanyu No.1). HtNHX1 and HtNHX2 share identical 5'- and 3'-UTR and coding regions, except for a 342 bp segment encoding 114 amino acids (L272 to Q385 ) which is absent in HtNHX2. Both hydroponics and soil culture experiments showed that the expression of HtNHX1 or HtNHX2 improved the rice tolerance to salinity...
June 19, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28626940/overexpression-of-hevea-brasiliensis-ethylene-response-factor-hberf-ixc5-enhances-growth-tolerance-to-abiotic-stress-and-affects-laticifer-differentiation
#6
Retno Lestari, Maryannick Rio, Florence Martin, Julie Leclercq, Natthakorn Woraathasin, Sandrine Roques, Florence Dessailly, Anne Clément-Vidal, Christine Sanier, Denis Fabre, Sémi Melliti, Sony Suharsono, Pascal Montoro
Ethylene response factor 1 (ERF1) is an essential integrator of the jasmonate and ethylene signalling pathways coordinating a large number of genes involved in plant defences. Its orthologue in Hevea brasiliensis, HbERF-IXc5, has been assumed to play a major role in laticifer metabolism and tolerance to harvesting stress for better latex production. This paper set out to establish and characterize rubber transgenic lines overexpressing HbERF-IXc5. Overexpression of HbERF-IXc5 dramatically enhanced plant growth and enabled plants to maintain some ecophysiological parameters in response to abiotic stress such as water deficit, cold and salt treatments...
June 19, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28621711/indigenous-probiotic-lactobacillus-isolates-presenting-antibiotic-like-activity-against-human-pathogenic-bacteria
#7
Debashis Halder, Manisha Mandal, Shiv Sekhar Chatterjee, Nishith Kumar Pal, Shyamapada Mandal
BACKGROUND: Indigenous lactic acid bacteria are well known probiotics having antibacterial activity against potentially pathogenic bacteria. This study aims to characterize the curd lactobacilli for their probiotic potentiality and antagonistic activity against clinical bacteria. METHODS: Four curd samples were processed microbiologically for the isolation of lactic acid bacteria (LAB). The LAB strains obtained were identified by conventional methods: cultural aspect, gram-staining, biochemical and sugar fermentation tests...
June 16, 2017: Biomedicines
https://www.readbyqxmd.com/read/28620661/brutus-and-its-paralogs-bts-like1-and-bts-like2-encode-important-negative-regulators-of-the-iron-deficiency-response-in-arabidopsis-thaliana
#8
Maria N Hindt, Garo Z Akmakjian, Kara L Pivarski, Tracy Punshon, Ivan Baxter, David E Salt, Mary Lou Guerinot
Iron (Fe) is required for plant health, but it can also be toxic when present in excess. Therefore, Fe levels must be tightly controlled. The Arabidopsis thaliana E3 ligase BRUTUS (BTS) is involved in the negative regulation of the Fe deficiency response and we show here that the two A. thaliana BTS paralogs, BTS LIKE1 (BTSL1) and BTS LIKE2 (BTSL2) encode proteins that act redundantly as negative regulators of the Fe deficiency response. Loss of both of these E3 ligases enhances tolerance to Fe deficiency. We further generated a triple mutant with loss of both BTS paralogs and a partial loss of BTS expression that exhibits even greater tolerance to Fe-deficient conditions and increased Fe accumulation without any resulting Fe toxicity effects...
June 16, 2017: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/28619792/whole-genome-sequence-of-bacillus-stratosphericus-strain-5co-isolated-from-lichen-usnea-florida-in-central-florida-united-states-with-high-tolerance-to-salt-and-heavy-metal
#9
Pushpa Lata, Subramaniam S Govindarajan, Feng Qi, Jian-Liang Li, Santosh K Maurya, Malaya K Sahoo
Bacillus stratosphericus strain 5Co was isolated from lichen Usnea florida in central Florida, United States. Here, we report a draft genome sequence of this strain, which consists of 159 contigs spanning 3,628,496 bp, with a G+C content of 41.3% and comprises 3,729 predicted coding sequences.
June 15, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28614955/systemic-effects-after-intravitreal-injection-of-bevacizumab-in-new-born-rabbit-eyes
#10
Yih-Shiou Hwang, Chi-Hsien Liu, Yin-Cheng Huang, Chih-Shan Chen, Tun-Lu Chen, Nan-Kai Wang, Yen-Po Chen, Kwan-Jen Chen, Chi-Chun Lai, Wei-Chi Wu
PURPOSE: To determine the systemic impact of intravitreal bevacizumab (IVB), an anti-vascular endothelium growth factor antibody, after injection into newborn rabbit eyes. MATERIALS AND METHODS: We used four groups of rabbits. Group 1 rabbits received a single injection of IVB starting from the age of 6 weeks. Group 2 rabbits received a single injection of balanced salt solution (BSS, 0.025 ml) and served as controls for group 1. Group 3 rabbits received 2 consecutive injections of IVB at the ages of 6 weeks and 10 weeks...
June 14, 2017: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/28613864/regio-and-stereospecific-copper-catalyzed-substitution-reaction-of-propargylic-ammonium-salts-with-aryl-grignard-reagents
#11
Manuel Guisán-Ceinos, Victor Martín-Heras, Mariola Tortosa
We have developed a copper-catalyzed substitution reaction of propargylic ammonium salts with aryl Grignard reagents. The reaction is stereospecific and α-regioselective and proceeds with exceptional functional group tolerance. Conveniently, a stable, inexpensive, and commercially available copper salt is used and no added ligand is required.
June 15, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28612391/yield-resource-use-efficiency-and-trace-metal-uptake-of-weeping-lovegrass-grown-on-municipal-sludge-amended-soil
#12
Eyob H Tesfamariam, John G Annandale, Martin J Steyn, Wayne F Truter, Legesse K Debusho, Deribe G Talore
BACKGROUND: There are concerns that fertilization using sludge in semi-arid areas, where water is limiting, will compound the effect of drought, resulting in the decline of yield from potential salt accumulation. We investigated (8 years) impacts of annual sludge application at 0, 4, 8, and 16 Mg ha(-1) on weeping love grass hay yield, crude protein content (CP), rainfall use efficiency (RUE) and nitrogen use efficiency (NUE), and trace metal uptake. RESULTS: Both hay yield and RUE increased by 5-53% as the sludge rate increased...
June 14, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28612074/cobaloxime-catalyzed-hydration-of-terminal-alkynes-without-acidic-promoters
#13
Shengtai Hou, Hongjian Yang, Bin Cheng, Hongbin Zhai, Yun Li
Cobaloxime (Co(dmgBF2)2·2H2O), an inexpensive first-row transition-metal complex, catalyzed hydration of terminal alkynes gave the corresponding methyl ketones in good to excellent yields under neutral conditions (additional protic acids and silver salts are not required). A wide range of functional groups, such as allyl ether, benzyl ethers, carboxylic esters, imides, amides, nitro, and halogens, were tolerated. The mild reaction conditions together with the inexpensive feature and easy availability of the catalyst well address the current challenges in the field of alkyne hydration...
June 14, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28611796/identification-of-important-physiological-traits-and-moderators-that-are-associated-with-improved-salt-tolerance-in-cbl-and-cipk-overexpressors-through-a-meta-analysis
#14
Yuanchun Ma, Qunkang Cheng, Zongming Cheng, Hui Li, Youhong Chang, Jing Lin
The CBL-CIPK pathway is a plant-specific Ca(2+) sensor relaying pathway that has been shown to be involved in plant response to salt stress. Over-expression of CBL-CIPK network genes has been reported to increase salt tolerance in many studies. The studies on the overexpression of CBL-CIPK network genes, however, have used various indices to evaluate the effect of these genes on salt tolerance and have indicated a variety of roles for the major CBL-CIPK pathway genes. Therefore, it is of great interest to analyze the various effects resulting from the overexpression CBL-CIPK pathway genes and their relation to salt tolerance...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28604776/the-arabidopsis-leucine-rich-repeat-receptor-kinase-mik2-lrr-kiss-connects-cell-wall-integrity-sensing-root-growth-and-response-to-abiotic-and-biotic-stresses
#15
Dieuwertje Van der Does, Freddy Boutrot, Timo Engelsdorf, Jack Rhodes, Joseph F McKenna, Samantha Vernhettes, Iko Koevoets, Nico Tintor, Manikandan Veerabagu, Eva Miedes, Cécile Segonzac, Milena Roux, Alice S Breda, Christian S Hardtke, Antonio Molina, Martijn Rep, Christa Testerink, Grégory Mouille, Herman Höfte, Thorsten Hamann, Cyril Zipfel
Plants actively perceive and respond to perturbations in their cell walls which arise during growth, biotic and abiotic stresses. However, few components involved in plant cell wall integrity sensing have been described to date. Using a reverse-genetic approach, we identified the Arabidopsis thaliana leucine-rich repeat receptor kinase MIK2 as an important regulator of cell wall damage responses triggered upon cellulose biosynthesis inhibition. Indeed, loss-of-function mik2 alleles are strongly affected in immune marker gene expression, jasmonic acid production and lignin deposition...
June 12, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28603945/grafting-response-to-excess-boron-and-expression-analysis-of-genes-coding-boron-transporters-in-tomato
#16
Francesco Di Gioia, Alessio Aprile, Erika Sabella, Pietro Santamaria, Alberto Pardossi, Antonio Miceli, Luigi De Bellis, Eliana Nutricati
Boron (B) is essential for plant growth, however its excess in soil and/or in irrigation water can severely compromise plant growth and yield. The goal of this work was to determine whether grafting onto 'Arnold', a commercial interspecific hybrid (Solanum lycopersicum × S. habrochaites) rootstock, which in a previous study was found to be tolerant to salt stress, could improve tomato (S. lycopersicum L. 'Ikram') tolerance to excess B, and whether this effect is associated with an exclusion mechanism. Non-grafted, self-grafted, and grafted plants were hydroponically grown in a greenhouse with B concentration in the nutrient solution of 0...
June 12, 2017: Plant Biology
https://www.readbyqxmd.com/read/28603532/identification-of-salt-tolerance-related-micrornas-and-their-targets-in-maize-zea-mays-l-using-high-throughput-sequencing-and-degradome-analysis
#17
Rong Fu, Mi Zhang, Yinchuan Zhao, Xuechuan He, Chenyun Ding, Shuangkuai Wang, Yan Feng, Xianliang Song, Ping Li, Baohua Wang
To identify the known and novel microRNAs (miRNAs) and their targets that are involved in the response and adaptation of maize (Zea mays) to salt stress, miRNAs and their targets were identified by a combined analysis of the deep sequencing of small RNAs (sRNA) and degradome libraries. The identities were confirmed by a quantitative expression analysis with over 100 million raw reads of sRNA and degradome sequences. A total of 1040 previously known miRNAs were identified from four maize libraries, with 762 and 726 miRNAs derived from leaves and roots, respectively, and 448 miRNAs that were common between the leaves and roots...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28602686/heterologous-expression-in-pichia-pastoris-and-characterization-of-a-novel-gh11-xylanase-from-saline-alkali-soil-with-excellent-tolerance-to-high-ph-high-salt-concentrations-and-ethanol
#18
REVIEW
Hui Wang, Zhongyuan Li, Huihui Liu, Shuang Li, Haiyan Qiu, Kun Li, Xuegang Luo, Yajian Song, Nan Wang, Hongpeng He, Hao Zhou, Wenjian Ma, Tongcun Zhang
A GH11 xylanase gene (xyn11-1) cloned from saline-alkali soil was successfully expressed in Pichia pastoris GS115. The purified recombinant Xyn11-1 showed its maximal activity at pH 6.0, and retained more than 60.4% of activity at pH 10.0, with good pH stability. Its optimal temperature was 50 °C and it was stable after incubation for 1 h at 30 °C. Furthermore, Xyn11-1 was highly salt-tolerant, retaining more than 77.4% of activity in the presence of 0.25-4 M NaCl and displaying more than 47.2% relative activity after being incubated in the presence of 5 M NaCl at 37 °C for 10 min...
June 7, 2017: Protein Expression and Purification
https://www.readbyqxmd.com/read/28600033/evaluation-of-hla-g-14-bp-ins-del-and%C3%A2-3142g-c-polymorphisms-with-susceptibility-to-recurrent-spontaneous-abortion
#19
Mohammad Hashemi, Mojgan Mokhtari, Safura Khazaeian, Gholamreza Bahari, Maryam Rezaei, Alireza Nakhaee, Mohsen Taheri
OBJECTIVE: HLA-G is critically important for successful implantation during pregnancy. Increasing evidence supposed that HLA-G plays a key role in tolerance of the semi-allogeneic graft in pregnancy by inhibiting the cytotoxic functions of T and NK cells. The present study aimed to evaluate the impact of HLA-G rs1063320 (+3142G>C) and 14-bp insertion (ins)/deletion (del) polymorphisms on recurrent spontaneous abortion (RSA). MATERIALS AND METHODS: Genomic DNA from 93 RSA patients and 93 normal fertile women was isolated using the salting out method...
June 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28597437/salt-tolerance-of-a-wild-ecotype-of-vetiver-grass-vetiveria-zizanioides-l-in-southern-china
#20
Wan-Gou Liu, Jin-Xiang Liu, Mei-Ling Yao, Qi-Fu Ma
BACKGROUND: Vetiver grass (Vetiveria zizanioides L.) is widely used in more than 120 countries for land management (e.g. rehabilitation of saline lands). A wild ecotype of vetiver grass was found in southern China in the 1950s, but little is known about its adaptability to saline stress. For the purpose of understanding its tolerance to salinity as well as corresponding tolerance mechanisms, in a greenhouse with natural lighting, seedlings were grown in culture solutions and subjected to a range of NaCl concentrations for 18 days...
December 2016: Botanical Studies (Taipei, Taiwan)
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